baber/WOPTO huggingface dataset:
Patent JP-H02163973-A (JP)
Title: Insulated-gate type bipolar transistor
Inventor: NISHIURA SHINJI
IPC: H01L29/78
Filed: 1988-12-16
Abstract: PURPOSE:To increase an extraction speed of electrons remaining in an n-type high-resistance layer in an OFF state and, as a result, to enhance an OFF speed by a method wherein a part, of a drain layer, facing a source electrode is made thin. CONSTITUTION:A p-type base layer 4 is formed selectively on the surface part on one side of an n-type high-resistance layer 3; an n-type low-resistance source layer 5 is formed selectively on the surface part of the base layer 4; a gate electrode 8 is formed, via an insulating film 71, on the surface of a channel formation region 6 of the base layer 4 sandwiched between the n-type highresistance layer 3 and the source layer 5. A source electrode 9 is brought into contact with the base layer 4 which is situated on the side opposite to and to be adjacent to the channel formation region 6 of the source layer 5; a p-type low-resistance drain layer 1 is formed on the other side of the n-type high-resistance layer 3 via an n-type low-resistance buffer layer 2; a drain electrode 11 is brought into contact with the p-type drain layer 1. In this assembly, a region, of the p-type drain layer 1, facing the source electrode 9 is made thin; regions 1, 12 in its circumference is made thick.
Patent JP-H04192308-A (JP)
Title: Manufacture of oxide magnetic substance
Inventor: OTSUKA TSUTOMU
IPC: H01F1/34
Filed: 1990-11-26
Abstract: PURPOSE:To improve power loss frequency characteristics, by adding at least one or more kinds of Zr, Hf and Ta as silicide in a method wherein Mn-Zn based ferrite is manufactured by an ordinary powder metallurgy method. CONSTITUTION:By adding at least one kind selected out of zirconium silicide, tantalum silicide, and hafnium silicide to Zn-Mn based ferrite, power loss can be remarkably reduced. so that low loss magnetic substance which can be used at a high frequency higher than or equal to several hundreds kHz is obtained. When a magnetic core using this low loss oxide magnetic substance is built in a switching power supply, the heating value is reduced, and electric power can be supplied with high efficiency.
Patent JP-H07177589-A (JP)
Title: Displaying device for abnormality of equipment
Inventor: MURAKAMI YOSHIHIRO
IPC: H04N7/18
Filed: 1993-12-17
Abstract: PURPOSE:To display information on abnormality contents of an equipment onto a video screen of a television receiver altogether by providing the equipment having an output circuit outputting the information on the abnormality contents, and a video display means having an input circuit receiving the abnormality contents and a display circuit. CONSTITUTION:An equipment 1 is provided with an output circuit 2 outputting information of an abnormality contents of the equipment 1, a video display means 3 for a television receiver or the like is provided with an input circuit 4 receiving the information of the abnormality contents and with a display circuit 6 displaying the abnormality contents received by the input circuit 4 onto a video screen 5, and the equipment 1 and the television receiver 3 are connected by a communication transmission means 7 such as a coaxial cable. Through the constitution above, the information of the abnormality contents of the equipment 1 is displayed altogether on the video screen 5 of the video display means 3. Thus, the presence/absence of an abnormality of the equipment 1 and its abnormality contents are displayed on the screen by the display circuit 6.
Patent JP-H11152718-A (JP)
Title: Guard fence for road
Inventor: YAMAGUCHI SATOSHI
IPC: E01F13/08
Filed: 1997-11-19
Abstract: PROBLEM TO BE SOLVED: To facilitate joining work by mounting rear gutterlike rail supporters on a cylindrical column by means of bolts and fitting cylindrical rails to the rail supporters. SOLUTION: The head portion 2 of a rail supporter is fitted into and fixed to the opening of the upper end of a cylindrical column 1. The head portion 2 of the rail supporter and rear gutterlike rail supporters 4, one of front and rear gutterlike rail supporters formed in a bisected state, are screwed onto and connected continuously to the cylindrical column 2 with bolts 6. Cylindrical rails 10 are fitted into and fixed to the rear gutterlike rail supporters 4 by engaging engagement projections 9 with and inserted into engagement holes 11. And then the front gutterlike rail supporters 5 are put on the cylindrical rails 10 by engaging and inserting the engagement projections provided on the ceiling portions of the cylindrical rails 10 with and into the engagement holes 11.  Thus with the cylindrical rails 10 held between the rear gutterlike rail supporters 4 and the front gutterlike rail supporters 5, the cylindrical rails 10 are fitted to the column 1. The front and rear gutterlike rail supporters 5, 4 are joined integrally with connecting bolts 12. Therefor, the guard fences can be assembled easily and connected reliably in a site.
Patent JP-2000140994-A (JP)
Title: Full mold casting method
Inventor: KIMURA HIROHIKO
IPC: B22C9/04
Filed: 1998-11-10
Abstract: PROBLEM TO BE SOLVED: To provide a full mold casting method, with which a carbon defect is not generated and the fall-down of coating is prevented. SOLUTION: A mold 2 is composed of a molding flask 4, molding sand 6 held in the inner part of the molding flask 4, and a hollow pattern 1 embedded in the molding sand 6, etc., and a sprue 8 communicated with the pattern 1 is arranged at the left upper part. The pattern 1 is made of a foamable polystyrene and formed as the same outer shape as a product, and in the inner part of the pattern 1, gas venting holes 12 penetrated in the hollow part 10 are arranged at the upper and the lower part. A gas introducing passage 14 is connected with the upper part of the pattern 1 and e.g. a compressor (show no figure), etc., is connected with the gas introducing passage 14, and the pressurized gas can be introduced. A runner 16 is connected with a sprue 8 and extended to the lower part of the pattern 1.  The gas venting holes 12 are opened to the runner 16 extended from the sprue 8 and to the introducing passage 14, respectively. In this way, even in the case of lowering the inner pressure during pouring molten metal, the inner pressure can be held by forcibly feeding the air, etc., from the introducing passage, and the excellent quality casting having little carbon defect and preventing the fall-down of the coating agent can be produced.
Patent JP-H08235856-A (JP)
Title: Dram refresh circuit
Inventor: ZON SOKU PAKU
IPC: G06F12/00
Filed: 1995-11-14
Abstract: PROBLEM TO BE SOLVED: To improve characteristics of memory access by automatically refreshing a DRAM by using only registers. SOLUTION: To read and refresh desired data at the same time, the size of the DRAM is written in an X register 40 before an operation mode is entered. The value of a timer register 39 is transmitted to a timer 38. A comparator 37 enables the refreshing operation when the timer value is larger than a refresh counter value plus the X register value. The refresh counter 36 operates, and the comparator 37 outputs a refresh enable signal, which is inputted to a priority circuit 33, so that the refresh mode is entered. Then a memory control signal generation part 34 generates an RAS and a CAS signal and also outputs a refresh counter clock, which is inputted to the counter 36.
Patent JP-H01161548-A (JP)
Title: On-line file expanding system
Inventor: KOIZUMI MINORU
IPC: G06F12/00
Filed: 1987-12-18
Abstract: PURPOSE:To expand a file area in an on-line state by allowing each subsystem to perform the expansion of the file area in each disk under a state where subsystems cooperate each other while a system operates. CONSTITUTION:A subsystem 11 outputs an actuating file expanding data since a free area capacity (for example, 5KB) drops to an expansion set value 10KB or less. In receiving the data, each subsystem 12 and 13 stores the data in a collecting buffer and sends each responding file expanding data 800 and 801. Then the subsystems 12 and 13 collect the expanding data in the response files sent from other subsystems including their own files and store the data in buffers. Thereafter, the subsystems 12 compare the free area capacity of each collected data and, since the free area capacity of the subsystem 12 is the largest, the information in the actuating file expanding data is registered in a file managing table. Thereafter, file expansion candidate data are sent and, in receiving the data, the subsystem 11 sets an inside-managing table expansion suppressing flag to '1' and clears a work memory.
Patent JP-H04189077-A (JP)
Title: Motion vector detection circuit
Inventor: NAKAJIMA TAKASHI
IPC: H04N19/59
Filed: 1990-11-22
Abstract: PURPOSE:To attain accurate detection without much expansion of the hardware by changing a sampling rate and selecting the magnitude of a detected motion vector properly with respect to the size of a block. CONSTITUTION:A motion vector discrimination circuit 10 sends a signal to decide a sampling rate of an A/D converter 1 in response to the inputted moving vector. When the detected motion vector is larger than the size of a block, the sampling rate is reduced through a sampling rate control circuit 11. When the motion vector is smaller than the size of the block, the circuit 11 increases the size of the block. Then the magnitude of the motion vector whose sampling rate is detected is made proper with respect to the size of the block. Then the motion vector is detected accurately without much expansion of the hardware regardless of the movement of the picture.
Patent JP-H08152078-A (JP)
Title: Air-operated valve
Inventor: HAYASHIMOTO SHIGERU
IPC: F16K37/00
Filed: 1994-11-28
Abstract: PURPOSE: To provide an air-operated valve which can correctly detect valve opening/closing timing, eliminates air leakage, and is compact, at low cost. CONSTITUTION: This air-operated valve is constituted of a cylinder mechanism 2 provided with a piston 5 sliding in a cylinder by pressure adjustment carried out by compressed air supplied and discharged, a valve mechanism 3 which is engagedly provided with the cylinder mechanism 2, and adjusts the flow of fluid by opening/closing action of a valve element 26 interlocking with the sliding of the piston 5, and in addition a magnetic detector 14 fitted to the side of the cylinder of the cylinder mechanism, and linearly detecting the movement of a permanent magnet 13 mounted on the piston 5.
Patent JP-2001143466-A (JP)
Title: Semiconductor memory device
Inventor: SADAKATA HIROYUKI
IPC: G11C11/405
Filed: 1999-11-10
Abstract: PROBLEM TO BE SOLVED: To perform access at high speed, without causing delay in operation caused by the read operation of the same data or precharge operation of a bit line at both a hit, when the same word line address is accessed and miss hit. SOLUTION: Concerning a DRAM in 2Tr1C configuration, an address is latched by an address latch circuit 3 in advance, a word line 9a on the side of Aport corresponding to that address is activated, and data corresponding to a sense amplifier 7a are latched. In a comparator circuit 4, a following input address is compared with the above latched address and when both the addresses are coincident, the data latched by the sense amplifier 7a are read by a column decode circuit 6a. When both the addresses do not match, on the other hand, ordinary data read operation is performed from the side of other Bport different from the Aport, where the data are latched, and on the side of the Aport, the precharge operation of the bit line is performed at the same time.
Patent JP-H04187808-A (JP)
Title: Lubricating oil pump for engine
Inventor: YOSHIZAKI KOICHI
IPC: F01M11/03
Filed: 1990-11-21
Abstract: PURPOSE:To simplify structures of a crank case cover and a lubricating oil pump by itself and facilitate a machining process by integrally forming a strainer chamber for housing an oil strainer on the way of the suction passage communicated with an inlet of a blade chamber in a pump case main body. CONSTITUTION:An oil blade 27 housed inside a blade chamber 26a formed in a pump case main body 26 is fixed to an oil pump shaft 28 penetrating the blade chamber 26a via a pin 29. In the pump case main body 26, a strainer chamber 26e is formed expansively inward on the way of a suction passage 26d communicated with the blade chamber 26a on the inlet side thereof, and an oil strainer 32 made of a wire gauge or the like is housed inside the strainer chamber 26e. The strainer chamber 26e is expansively formed integrally on the way of the suction passage 26d of the pump case main body 26, where the strainer 32 is provided. Therefore, it is possible to simplify structures of a crank case cover and a pump by itself, and to dispense with a boring process of the suction passage.
Patent JP-H08163865-A (JP)
Title: Dc/dc converter
Inventor: HARADA YOSHIHITO
IPC: G03B17/00
Filed: 1994-11-30
Abstract: PURPOSE: To obtain a DC/DC converter in which consumption of battery voltage is reduced significantly under standby stage of an electronic circuit to be connected through such circuitry as employing an inductor, advantageous in viewpoint of cost, size, performance, etc., in place of a transformer. CONSTITUTION: A switching means Q4, being turned OFF upon receiving a stop signal for a DC/DC converter externally, is inserted between an output terminal and an inductor L1 and an inductor is employed as a component for boosting in place of a transformer. Upon provision of a stop signal for the DC/DC converter, conduction between the inductor and the output terminal is interrupted thus preventing the output from the inductor from being fed to an electronic circuit under standby state.
Patent JP-H04191593-A (JP)
Title: Pulsation absorbing device
Inventor: OGINO HIROHIKO
IPC: F16L55/04
Filed: 1990-11-21
Abstract: PURPOSE:To attenuate pulsation without installing a retainer orifice by increasing the viscosity of an electric viscous fluid or the fluid containing the electric viscous fluid by the electric field of an electrode when the frequency of the pulsation reaches a prescribed frequency region. CONSTITUTION:The discharge pressure P of a hydraulic pump 21 pulsates with a certain frequency fc, and this frequency is detected and compared with the characteristic frequency fp of a hydraulic pipe 23 or a frequency region including fp in a controller 26. When fc accords with fp or in the frequency region including fp, an electric field is applied between a pair of electrodes 24e and 24f installed at a prescribed position of a hydraulic pipe 23 which corresponds to the node or loop of the pulsation pressure by the controller 26. Since the fluid which flows in the hydraulic pipe 23 is an electric viscous fluid itself or the working oil containing the electric viscous fluid, the viscosity is increased by the electric field, and the fluidity at the prescribed position is reduced. Accordingly, the similar operation to the installation of an orifice plate can be obtained, and pulsation can be attenuated, and the pulsation level can be reduced.
Patent JP-H11153482-A (JP)
Title: Semiconductor flame sensor
Inventor: HIRANO HIKARI
IPC: G01J1/02
Filed: 1997-11-20
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor flame sensor capable of making a dark current as small as possible. SOLUTION: In a semiconductor flame sensor provided with a light receiving part PR having a first conduction type semiconductor layer FL and a second conduction type semiconductor layer SL of the different conduction type from the semiconductor layer FL which are aligned in their cross direction and stacked one on the other so that the light receiving part PR has light sensitivity in wavelength ranges not more than around 300 nm, with a pair of electrodes 8a, 8b formed to conduct a current between the first conduction type semiconductor layer FL and the second conduction type semiconductor layer SL, the first conduction type semiconductor layer FL and the second conduction type semiconductor layer SL are made from materials of the type Iny Alx Ga1-x-y N (x>=0, y>=0),  and a high resistance area HR where high resistance is achieved by ion implantation is provided on the side part of the semiconductor flame sensor where the first conduction type semiconductor layer FL and the second conduction type semiconductor layer SL are exposed, in such a way that the high resistance area HR extends across the first conduction type semiconductor layer FL and the second conduction type semiconductor layer SL.
Patent JP-H04188532-A (JP)
Title: Circuit breaker
Inventor: ISHII KAZUHIRO
IPC: H02H3/093
Filed: 1990-11-21
Abstract: PURPOSE:To have protection of an electric path certainly even though overload current flows intermittently by furnishing No.2 insufficient voltage operation prohibiting circuit which closes a switching means only when the operating energy of an electromagnetic tripping device, i.e., secondary current of a current transformer, has exceeded a certain specified value. CONSTITUTION:No.1 insufficient voltage operation prohibiting circuit is provided, which is connected with the output terminal of a power supply circuit 500 and closes the output path of a time limit circuit 70 when a specified vague is not reached by the output voltage of this power supply circuit 500. Further a No.2 insufficient voltage operation prohibiting circuit 700 is furnished, which is connected with the output terminal of a rectifier 30 and hinders closing of a switching means 120 when a specified level is not attained by the secondary current of current transformers 21, 22. Thereby the electricity distribution path can certainly be protected even though overload current flows intermittently.
Patent JP-H03180791-A (JP)
Title: Cw radar
Inventor: YOSHINAGA AKIO
IPC: G01S7/292
Filed: 1989-12-08
Abstract: PURPOSE:To increase the degree of separation between transmission and reception to extend the search distance by adding the signal, which is obtained by amplitude/ phase weighting of a reference signal divided from the transmission power, to a reception signal to suppress the signal of the transmission power. CONSTITUTION:Separated transmission power PTa to be the reference signal is extracted from transmission power PT by a power distributor 42 and is subjected to amplitude weighting and phase weighting in a variable gain amplifier 44 and a phase device 46 to have the same amplitude level as a leak signals Ls inputted to a mixer 32 and have a phase opposite to that of this leak signal, and a weighted signal Ws is sent to a power adder 48. The adder 48 adds the signal, where a reflection signal of a marker M and the leak signal Ls are superposed, inputted from a circuit separator 24 and the signal Ws and sends the result to the mixer 32. In this case, waveforms of the power PT and the signal Ls are observed by a spectrum analyzer 50 and the signal Ls having the waveform similar to that of the power PT is suppressed by the signal Ws, and therefore, a suppressed signal Cs consisting of only the reflection signal of the marker M is sent to the mixer 32 and is supplied to an indicator 38 through a Doppler processor 36. Thus, the degree of separation between transmission and reception is improved, and a continuous radio wave WT dependent upon the larger power PT can be radiated to extend the search distance.
Patent JP-2000133074-A (JP)
Title: Structure of knob
Inventor: KASAI TAKASHI
IPC: H01H13/14
Filed: 1998-10-23
Abstract: PROBLEM TO BE SOLVED: To allow a straight push of a knob body over a long stroke, and stabilize movement of the knob body. SOLUTION: This knob is formed with plural elastically deformable hinges 2a connecting a knob body 1 and holding bodies 3a, in a first plane perpendicular to a moving central axis of the knob body 1, and plural elastically deformable hinges 2b connecting the knob body 1 and holding bodies 3b in a second plane different from the first plane perpendicular to the moving central axis.
Patent JP-H10159884-A (JP)
Title: Disc pad for disc brake
Inventor: TSUZUKI HIROSHI
IPC: F16D69/00
Filed: 1996-11-29
Abstract: PROBLEM TO BE SOLVED: To prevent deterioration of brake effect due to adhesion of water, oil, or dirt onto a contact face by forming a plurality of triangular grooves, which are formed into circular arcs setting their centers below in the rotating direction, on the contact face with a disc rotor in a disc pad. SOLUTION: In a disc pad 1, a contact face 12 touching a disc rotor is projectingly arranged on a base board 11, while the contact face 12 is formed into a circular arc matching with the rotation of the disc rotor, and a plurality of triangular grooves 13, which are formed into circular arcs setting their centers below in the rotating direction of the brake rotor, are formed. Therefore, even if water, oil, dirt or the like adheres to the contact face 12, the contact face 12 is pressed by means of a disc rotor, so that adhering water, oil, dirt or the like is moved in the rotating direction of a disc rotor so as to be discharged into the grooves 13, and then, moved in the grooves 13 so as to be discharged to the outside, and as a result, a normal braking action can be carried out.  The face 13a of the groove 13 is formed orthogonally to the contact face 12, so that water, oil, dirt or the like discharged into the grooves 13 is prevent from adhering to the contact face 12 again.
Patent JP-2001130493-A (JP)
Title: Airship
Inventor: YOKOMAKU YOSHIO
IPC: B64B1/60
Filed: 1999-11-10
Abstract: PROBLEM TO BE SOLVED: To provide an airship capable of increasing flight altitude largely more than that of a conventional airship. SOLUTION: This airship 10 is formed in a double film structure capable of storing a plurality of gas bags 12 in a skin 20. Gaseous helium is stored in the gas bags 12, and the plurality of gas bags are installed in the axial direction of a body 11. On the body 11, balloonets 13 and 14 are installed at the front and rear sides thereof. Also, blowers 15 and 16 for discharging the air layer between the body 11 and the gas bags 12 to the outside or sucking the outside air and an internal pressure regulating means 18 having a natural discharge port are installed on the body 11. A pressure difference between the inside and outside of the ship is regulated by the internal pressure regulating means 18, and the posture of the body 11 is controlled by the balloonets 13 and 14.
Patent JP-H09163374-A (JP)
Title: Noise reduction device
Inventor: MOTAI MASAHIKO
IPC: H04N19/625
Filed: 1995-12-08
Abstract: PROBLEM TO BE SOLVED: To prevent fluctuation in the unit of blocks. SOLUTION: A motion detection circuit 32 obtains a correlation between a reference image block and a block of a current image from memories 42, 43 and obtains a correlation between the surrounding block of the reference image block and a block of the current image. A coefficient arithmetic circuit 39 calculates an NR coefficient based on the correlation values. A subtractor 37 obtains an inter-frame non-correlation component from a difference of image data before and after one frame, a noise extract circuit 38 extracts noise from a non-correlation component and the NR coefficient. A subtractor 35 eliminates the noise component from the input image data and provide an output.  Since the NR coefficient is decided based on the correlation between the reference image block and a surrounding block of the current image block, the difference of the noise reduction effect in the unit of block is not increased and the fluctuation in the unit of blocks is prevented.